CompStak is a commercial real estate data platform that provides verified lease comps, sale comps, loan data, and property intelligence. Founded in 2012, CompStak crowdsources transaction data from over 40,000 brokers, appraisers, and researchers nationwide, then verifies it through a rigorous multi-step process combining AI, machine learning, and expert analyst review.

How does CompStak verify its data?

CompStak uses a four-stage verification process: (1) Community Sourcing - data is crowdsourced from 40,000+ verified CRE professionals, (2) AI and Machine Learning - algorithms identify duplicates and outliers, (3) Internal Verification - analysts cross-check data against public records daily, and (4) Knowledge Graph - proprietary technology ensures consistency across the database.

What markets does CompStak cover?

CompStak provides nationwide coverage across 105 US commercial real estate markets, including all major metro areas. The platform contains data on over 4 million properties and 4 million lease and sale transactions across office, retail, industrial, and multifamily asset types.

CompStak Blog

Podcast Recaps Jan 16, 2026

The Commercial Real Estate Ecosystem: Insights from Ralph S. J. Koijen, Neel Shah, and Stijn Van Nieuwerburgh Using CompStak Data

Research Papers Sep 29, 2025

Determinants and Consequences of Return to Office Policies: Insights from Sean Flynn, Andra C. Ghent, and Vasudha Nair Using CompStak Data

Research Papers Sep 29, 2025

Tenant Riskiness, Contract Length, and the Term Structure of Commercial Leases: Insights from Jan K. Brueckner and Stuart S. Rosenthal Using CompStak Data

Research Papers Sep 29, 2025

Filtering in Commercial Real Estate: Insights from Nathaniel Baum-Snow, Stephan Heblich, and Stuart S. Rosenthal Using CompStak Data

Research Papers Sep 29, 2025

The Financial Impact of Healthy Buildings: Research Insights from Natasha Sadikin, Dr. Irmak Turan, and Dr. Andrea Chegut Using CompStak Data

Research Papers Sep 29, 2025

Work From Home and the Office Real Estate Apocalypse: Insights from Arpit Gupta, Vrinda Mitta, and Stijn Van Nieuwerburgh Using CompStak Data

Tips & Tricks Sep 29, 2025

CompStak Launches CompStak AI: Transforming CRE Data into Intelligent, Actionable Insights

Latest

2025 Biannual Industrial Market Report: Part One

How the Columbia CompStak Rent Index (CCRI) Eliminates Compositional Bias in CRE Rent Data - Webinar Recap

Data Science: CompStak's Agentic Search

Columbia CompStak (CCRI) National Update: April 15, 2026

5×5 with CompStak: What’s Fueling the Data Center Gold Rush? – A Recap with Ryan Atkinson from JLL

5×5 with CompStak: What Happens to DC Office in a DOGE World? – A Recap with Adam Collins from Transwestern

KBRA Analytics’ KCP Integrates With CompStak to Deliver Credit Insight to CRE Market Participants

CompStak Launches CompStak AI: Transforming CRE Data into Intelligent, Actionable Insights

Data Science: CompStak’s Agentic Search

Data Science: CompStak’s Space Insights Rent Prediction

CompStat: Sublease Recovery, Declining Imports, and Bridge Logistics’ LA Buy

CompStak Portfolio Series: BXP, Inc. vs. Perform Properties

Dynamic Urban Economics: Insights from Brian Greaney, Andrii Parkhomenko, and Stijn Van Nieuwerburgh Using CompStak Data

The Commercial Real Estate Ecosystem: Insights from Ralph S. J. Koijen, Neel Shah, and Stijn Van Nieuwerburgh Using CompStak Data

Determinants and Consequences of Return to Office Policies: Insights from Sean Flynn, Andra C. Ghent, and Vasudha Nair Using CompStak Data

Tenant Riskiness, Contract Length, and the Term Structure of Commercial Leases: Insights from Jan K. Brueckner and Stuart S. Rosenthal Using CompStak Data

Filtering in Commercial Real Estate: Insights from Nathaniel Baum-Snow, Stephan Heblich, and Stuart S. Rosenthal Using CompStak Data

The Financial Impact of Healthy Buildings: Research Insights from Natasha Sadikin, Dr. Irmak Turan, and Dr. Andrea Chegut Using CompStak Data

Work From Home and the Office Real Estate Apocalypse: Insights from Arpit Gupta, Vrinda Mitta, and Stijn Van Nieuwerburgh Using CompStak Data

How Researchers Use CompStak Data to Advance Commercial Real Estate Research

Why Academic Institutions Should Incorporate CompStak Data Into the Classroom

Data Science: CompStak’s Property CompSet

The AI Boom and its Impact on Data Centers

5×5 with CompStak: Exploring the Phoenix Industrial Market – A Recap with Josh Wyss from Cushman and Wakefield

How Sticky Inflation and Fed Policy Are Reshaping CRE Financing in 2025

CompStat: Tariff Effects, Auto Impact, and Penn 2’s Verizon Lease

2025 Biannual Industrial Market Overview: Part Four

2025 Biannual Industrial Market Overview: Part Three

CompStak Exchange

For Brokers, Appraisers and Researchers

The world's largest free and anonymous lease and sale comp trading platform

CompStak One

For Landlords, Lenders and Investors

Powering analysis with real-time records of CRE lease, sale, property, and loan data.

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Latest

Stay up to date with the latest Commercial Real Estate Insights.

CompStak Exchange

For Brokers, Appraisers and Researchers

The world's largest free and anonymous lease and sale comp trading platform

CompStak One

For Landlords, Lenders and Investors

Powering analysis with real-time records of CRE lease, sale, property, and loan data.